Testing for random pairing

Piet de Jong, Malcolm Greig, Dilip Madan

Research output: Contribution to journalArticlepeer-review


The analysis of contingency tables in which both margins have the same polychotomy is considered. These tables arise when members from categories form pairs. Pairs cannot be between members of the same category. Appropriate models for pairing are introduced. A maximum likelihood algorithm is developed and asymptotic covariance formulas are derived. An empirical example illustrates the procedures.

Original languageEnglish
Pages (from-to)332-336
Number of pages5
JournalJournal of the American Statistical Association
Issue number382
Publication statusPublished - 1983
Externally publishedYes


  • Algorithm
  • Chi-Square
  • Contact sampling
  • Contingency tables
  • Maximum likelihood
  • Random pairing


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